كتاب الحج
15  
The Book of Pilgrimage
(64)
Chapter: It is recommended to send the sacrificial animal to the Haram for one who does not intend to go there himself; It is reommended to garland it and to make the garland, but the one who sends it does not enter a state of Ihram, and nothing is forbidden to him because of that
(64)
باب اسْتِحْبَابِ بَعْثِ الْهَدْىِ إِلَى الْحَرَمِ لِمَنْ لاَ يُرِيدُ الذَّهَابَ بِنَفْسِهِ وَاسْتِحْبَابِ تَقْلِيدِهِ وَفَتْلِ الْقَلاَئِدِ وَأَنَّ بَاعِثَهُ لاَ يَصِيرُ مُحْرِمًا وَلاَ يَحْرُمُ عَلَيْهِ شيء بِذَلِكَ
Sahih Muslim 1321 h

'A'isha (Allah be pleased with her) reported:

I recall how I wove garlands for the sacrificial animals (the goats) of Allah's Messenger (ﷺ). He sent them and then stayed with us as a non-Muhrim.
وَحَدَّثَنَا زُهَيْرُ بْنُ حَرْبٍ، حَدَّثَنَا جَرِيرٌ، عَنْ مَنْصُورٍ، عَنْ إِبْرَاهِيمَ، عَنِ الأَسْوَدِ، عَنْ عَائِشَةَ، قَالَتْ لَقَدْ رَأَيْتُنِي أَفْتِلُ الْقَلاَئِدَ لِهَدْىِ رَسُولِ اللَّهِ صلى الله عليه وسلم مِنَ الْغَنَمِ فَيَبْعَثُ بِهِ ثُمَّ يُقِيمُ فِينَا حَلاَلاً ‏.‏
Reference : Sahih Muslim 1321h
In-book reference : Book 15, Hadith 405
USC-MSA web (English) reference : Book 7, Hadith 3039
  (deprecated numbering scheme)